/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You under the Apache License, Version 2.0
 * (the "License"); you may not use this file except in compliance with
 * the License.  You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package org.apache.solr.logging.jul;

import java.util.logging.Level;
import java.util.logging.Logger;

import org.apache.solr.logging.LoggerInfo;

public class JulInfo extends LoggerInfo {
	private static final Level[] LEVELS = {
			null, // aka unset
			Level.FINEST, Level.FINE, Level.CONFIG, Level.INFO, Level.WARNING,
			Level.SEVERE, Level.OFF
	// Level.ALL -- ignore. It is useless.
	};

	final Logger logger;

	public JulInfo(String name, Logger logger) {
		super(name);
		this.logger = logger;
	}

	@Override
	public String getLevel() {
		if (logger == null) {
			return null;
		}
		Level level = logger.getLevel();
		if (level != null) {
			return level.getName();
		}
		for (Level l : LEVELS) {
			if (l == null) {
				// avoid NPE
				continue;
			}
			if (logger.isLoggable(l)) {
				// return first level loggable
				return l.getName();
			}
		}
		return Level.OFF.getName();
	}

	@Override
	public boolean isSet() {
		return (logger != null && logger.getLevel() != null);
	}
}